/*
 * Copyright 2023 Expedia, Inc
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.expediagroup.graalvm.schema.dataloader

import com.expediagroup.graphql.dataloader.KotlinDataLoader
import com.expediagroup.graphql.generator.scalars.ID
import graphql.GraphQLContext
import org.dataloader.DataLoaderFactory
import java.util.concurrent.CompletableFuture

const val EXAMPLE_LOADER = "EXAMPLE_LOADER"

val ExampleDataLoader = object : KotlinDataLoader<ID, String> {
    override val dataLoaderName = EXAMPLE_LOADER
    override fun getDataLoader(graphQLContext: GraphQLContext) =
        DataLoaderFactory.newDataLoader<ID, String> { ids ->
            CompletableFuture.supplyAsync {
                ids.map { it.value }
            }
        }
}
